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Finding the Fourth Proportional to 123,954.67, 170,999.02 and 89,888.43

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Solution

The fourth proportional to 123,954.67, 170,999.02 and 89,888.43 is: 124,003.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,954.67 : 170,999.02 = 89,888.43 : x
  2. Step 2: Convert to fraction form
    123,954.67/170,999.02 = 89,888.43/x
  3. Step 3: Cross multiply
    123,954.67x = 170,999.02 × 89,888.43
  4. Step 4: Simplify right side
    123,954.67x = 15,370,832,134.90
  5. Step 5: Solve for x
    x = 15,370,832,134.90/123,954.67
  6. Step 6: Final answer
    x = 124,003.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.